HC49US8.000MABJ-UB

## AT-CUT CRYSTAL UNIT (Metal-can Type) 

## RoHS compliant 

## HC-49/U-S 

## ■ FEATURES 

- Frequency range : 3.5 ～ 50.0MHｚ 

- External dimensions (mm) 

- L : 11.5 x W : 4.66 x H : 3.5 

- Applications Consumer products 

## ■ DIMENSION [mm] 

## ■ STANDARD SPECIFICATIONS 

|Model<br>Item<br>|<br>~~lh~~|Model<br>Item<br>|<br>~~lh~~|HC-49/U-S<br>|<br>|<br>~~lh~~|Conditions<br>||
|---|---|---|---|
|**Nominal Frequency**|f0<br>~~lh~~<br>~~Ss~~|3.5MHz ～ 30.0MHz (Fundamental)<br>30.0MHz ～ 50.0MHz (3rd Overtone)<br>~~lhEe~~<br>|Please contact us for<br>frequencies available|
|**Frequency Tolerance**|Δf/f0<br>~~lh~~<br>~~Ss~~|±30ppm<br>~~lhEe~~<br>|at 25˚C|
|**Frequency Tolerance over**<br>**Operating Temperature Range**|Δf/f0<br><br>~~Ssff~~<br>~~Ss~~|below   6.0MHz:±50ppm<br>above   6.0MHz:±30ppm<br>~~Ee~~<br>~~ff~~<br>~~ee~~|-10℃～+60℃|
|**Operating Temperature Range**|TOPR<br>~~Ss~~<br>~~Ss~~|-20℃ ～ +70℃<br>~~ee~~<br>~~ee~~||
|**Storage Temperature Range**|TSTR<br>~~Ss~~<br>~~Ss~~<br>~~Ss~~|-40℃ ～ +85℃<br>~~ee~~<br>~~ee~~<br>~~ee~~||
|**Motional (series) resistance**|R1<br>~~Ss~~<br>~~Ss~~|Refer to the following table<br>~~ee~~<br>~~ee~~|at 25˚C|
|**Load capacitance**|CL<br>~~Ss~~<br>~~———eeEe~~<br>~~Ss~~|Fundamental:10.0pF ～ ∞<br>3rd Overtone:5.0pF ～ ∞<br>~~ee~~<br>~~———eeEe~~|Please specify your requirement|
|**Shunt capacitance**|C0<br>~~———eeEe~~<br>~~Ss~~<br>~~Ss~~|7.0pF Max.<br>~~———eeEe~~||
|**Level of drive**|DL<br>~~Ss~~<br>~~Ss~~<br>~~Ss~~|100μW||
|**Insulation Resistance**|IR<br>~~Ss~~<br>~~Ss~~|500MΩMin.|DC100V±15V|
|**Aging (first year)**|Δf/f0<br>~~Ss~~<br>~~i~~|±5ppm Max.|25℃±3℃|



## ■ MOTIONAL (SERIES) RESISTANCE (R1) 

|**Freq. Range (MHz)**|**3.5≦f0＜4.0**|**4.0≦f0＜6.0**|**6.0≦f0＜10.0**|**10.0≦f0＜14.0**|**14.0≦f0＜30.0**|**30.0≦f0＜36.0**|**36.0≦f0≦50.0**|
|---|---|---|---|---|---|---|---|
|**Mode**|**Fundamental**|**Fundamental**|**Fundamental**|**Fundamental**|**Fundamental**|**3rd Overtone**|**3rd Overtone**|
|**R1**|**200ΩMax.**|**150ΩMax.**|**100ΩMax.**|**80ΩMax.**|**50ΩMax.**|**140ΩMax.**|**100ΩMax.**|



- http://cfd.citizen.co.jp/english/prod tech/product/cvo_top.html 

## ■ PART NUMBERING SYSTEM 

## **HC-49/U-S     20000000     A  B  J  B  -  □□□** 

|**Frequency**||**Frequency Tolerance**||**Frequency Tolerance over**||**Load capacitance (CL)**||**CITIZEN**|
|---|---|---|---|---|---|---|---|---|
|Please specify<br>the frequency<br>in Hz.||**A**<br>±30ppm(STD)<br>**B**<br>±50ppm(STD)<br>**（at 25℃)**||**B**<br>±30ppm<br>Range -10℃ ～ +60℃<br>±50ppm<br>Range -10℃ ～ +60℃<br>**A**<br>**Operating Temp. Range**||**J**<br>18.0pF<br>**K**<br>20.0pF<br>**I**<br>16.0pF||Ref. Code for<br>internal use.<br>**management code**|
|||||±50ppm<br>Range -40℃ ～ +85℃<br>±100ppm<br>Range -40℃ ～ +85℃<br>**G**<br>**H**||**B**<br>Bulk(STD)<br>**Package specification**|||
|||||||**T**<br>Ammo pack|||



*Please contact us for specifications available. 

## ■ Part Marking [standard] 

## **ffffCym** 

f : The first 4 digits of Frequency including the decimal point 

C : Manufacture's ID Code 

y : The last digit of production year 

m : Production month (See Table.1) 

Table.1 ~~a~~ Month ~~eee~~ Jan Feb … Sep Oct Nov Dec ~~a~~ Code ~~ee~~ 1 2 … 9 X Y Z 

## ■ Taping dimension : 2,000pcs/Ammo pack [mm] 

Rev.1 

- ~~a~~ http://cfd.citizen.co.jp/english/prod tech/product/cvo_top.html